Staging: rtl8723au: Declare function static

Declare function Efuse_ReadAllMap as static since it's defined and used
only in this file.
Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723au/core/rtw_efuse.c

@@ -459,7 +459,8 @@ int rtw_BT_efuse_map_read23a(struct rtw_adapter *padapter,
 }
 
 /* Read All Efuse content */
-void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType, u8 *Efuse)
+static void Efuse_ReadAllMap(struct rtw_adapter *pAdapter, u8 efuseType,
+			     u8 *Efuse)
 {
 	u16	mapLen = 0;